Inventor · disambiguated record
Tien-Tzu Chang
Also filed as: CHANG TIEN-TZU
4 granted patents·43 citations·filing 1994–1994
74Inventor score
Technology areasG02C
Files withCHANG TIEN-TZU3
Top patents by PatentIndex Score
4 records- 0159USD364885SSpectaclesCHANG TIEN-TZU·Filed 1994·Granted Dec 5, 1995·11 cites·1 claims
- 0257USD364636SSpectaclesCHANG TIEN-TZU·Filed 1994·Granted Nov 28, 1995·10 cites·1 claims
- 0348US5384604ACollapsible glassesFiled 1994·Granted Jan 24, 1995·22 cites·3 claims
- 0425USD364637SSpectaclesCHANG TIEN-TZU·Filed 1994·Granted Nov 28, 1995·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →